package com.example.hangzhou.welbeing.mytestdemoapp.designPatterns.AgentModel.model;

import com.example.hangzhou.welbeing.mytestdemoapp.designPatterns.AgentModel.inter.Image;

/**
 * 杭州惟君医疗科技有限公司11
 * Created by 20433 on 2018/5/18
 *
 * @desc 东风山河绿，春已不折柳，繁花看不尽，处处惹人留
 * @desc 佛祖镇楼，bug辟容易
 */

public class ProxyImage implements Image {
    private RealImage realImage;
    private String fileName;

    public ProxyImage(String fileName) {
        this.fileName = fileName;
    }

    @Override
    public void display() {
        if(realImage == null){
            realImage = new RealImage(fileName);
        }
        realImage.display();
    }
}
